Plant

Plants have several functions in Oxygen Not Included from purely improving decor to being the source of food. They can be found growing in different biomes, dug out and replanted. They are all made of Genetic Ooze.

Requirements
Plants have a range of conditions they require to grow. Plants will either grow if you've met all of their requirements or won't if you haven't. Failure to meet any requirement will cause a plant to become stifled and show a withered look for the duration. Stifled plants will pause growth and not consume resources. They are otherwise unharmed and will resume normal growth after their problems are resolved.
 * Temperature: Plants only grow in a range of temperature which is related to the biome where you find them originally. Whatever this range is, all plants like the conditions which are acceptable for your duplicants and can be tended without Exosuits. Plant temperature can be directly inspected and may take some time to match the environment.
 * Atmosphere: Some plants can grow in any atmosphere while others require to be in specific gasses such as Carbon Dioxide or Chlorine.
 * Pressure: Most of the plants require at least ≥ 150 g of pressure to grow. Air pressure seems to be averaged over the plant's height.
 * Illumination: Some plants prefer to have a strong light source, while others enjoy soothing darkness.
 * Fertilization: Productive plants typically require some combination of liquid or solid resources to continue growing. Hydroponic Farms and Auto-Sweeper may assist in these tasks.

Ripe plants will continue to draw resources before harvest. They will automatically drop their product after a few cycles and begin anew.

Kinds of plants
There are four general kinds of plants in the game.

Decorative plants
Decorative plants give significant Decor bonus but have different requirements regarding the atmosphere and the temperature. They all have a height of 1 and can be planted in all kinds of Pots. Once planted they do not require any further attention from the duplicants and will passively contribute to Decor. However, if their requirements are not being met, they become stifled and will give a negative Decor bonus instead. Decorative plants do not grow and do not drop seeds.

Using decorative plants inside your base is a cheap way to reduce the Stress since they usually can live in Oxygen and prefer the same temperature range as your duplicants. Sporechid while technically being a decorative plant is not advised to be utilized in that way and thankfully lives only in Carbon Dioxide.

Food plants
The primary function of the food plants is to provide edible items and cooking ingredients. They can be planted in either Planter Box (with some exceptions), Farm Tile or Hydroponic Farm. Besides the temperature and atmosphere requirements they usually require either some sort of fertilization and some sort of irrigation in form of a daily supply of Water or Polluted Water. Growing of the food plants can be further accelerated by using Micronutrient Fertilizer. Food plants have a chance to drop seeds.

Because of specific requirements it's usually a good idea to make a dedicated area for each farm and isolate it from the base (e.g. make a U-shaped dark farm for Mushrooms to collect the Carbon Dioxide).

There are two special food plants that only grow wild and can only be harvested once, Buried Muckroot and Hexalent. They primarily serve as a limited early-game food source.

Industrial Plants
Industrial Plants share the farming mechanics with the food plants but produce Industrial Ingredients or other resources instead. They usually require less attention from the duplicants with Thimble Reed needing only irrigation and Balm Lily requiring nothing at all, but they still require certain temperature and atmosphere conditions. Some of them also feed on specific type of gas.

Utility Plants
Utility plants perform specific unique functions. The Wheezewort cools down the environment and Oxyfern converts carbon dioxide to oxygen. Utility plants do not grow and cannot be harvested. Additional seeds may be acquired from either uprooting existing plants, receiving them from space missions or getting them randomly from the Printing Pod. Utility Plants have the same farming mechanics as food plants.

Seeds
Plants always produce a seed when uprooted or killed. For food and industrial plants there is a base 10% chance that a seed is produced once every harvest, though there is an additional 3.3% chance per level of Agriculture, including skill bonuses, so with 10 Farming the chance is 43%. Each seed weighs 1 kg.

Plant Mutation Spaced Out Banner.png
Radiation, introduced in the Spaced Out! DLC, can mutate seeds to give a plant additional traits, yet mutated plants are themselves infertile and don't drop their own seeds.

These mutated Seeds need to be analyzed in a Botanical Analyzer before they can be used, even if that type of mutation is already known.
 * Sleet Wheat, Nosh Sprout, and Gas Grass can now mutate as as of Space Out build 464102.
 * Maximum mutation chance is now 80% at maximum radiation tolerances
 * New radiation tolerances (rad/cycle):
 * Mealwood, Bog bucket, Dusk Cap, Thimble Reed, Bristle Blossom, Balm Lily: 460
 * Dasha Saltvine, Waterweeds: 740
 * Grubfruit, Nosh Bean, Pincha Pepper, Arbor (does not mutate): 980
 * Sleet Wheat, Gas Grass: 1220
 * Most other plants: 220
 * Mealwood can be Licey, therefore doubling its yield.
 * Juicyfruit is good for automated farms, but is only fertilizer-efficient for plants that have a growth period of less than 16 days, since regularly they need 16+4=20 days of fertilizer, but with Juicyfruit they need 16*1,25 = 20.
 * Only Nosh Sprout and Sleet Wheat take longer to cultivate.